| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.commons.io.input; |
| |
| import static org.junit.jupiter.api.Assertions.assertArrayEquals; |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.junit.jupiter.api.Test; |
| |
| public class RandomAccessFileInputStreamTest { |
| |
| private static final String DATA_FILE = "src/test/resources/org/apache/commons/io/test-file-iso8859-1.bin"; |
| private static final int DATA_FILE_LEN = 1430; |
| |
| private RandomAccessFile createRandomAccessFile() throws FileNotFoundException { |
| return new RandomAccessFile(DATA_FILE, "r"); |
| } |
| |
| @Test |
| public void testAvailable() throws IOException { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(), |
| true)) { |
| assertEquals(DATA_FILE_LEN, inputStream.available()); |
| } |
| } |
| |
| @Test |
| public void testAvailableLong() throws IOException { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(), |
| true)) { |
| assertEquals(DATA_FILE_LEN, inputStream.availableLong()); |
| } |
| } |
| |
| @Test |
| public void testCtorCloseOnCloseFalse() throws IOException { |
| try (RandomAccessFile file = createRandomAccessFile()) { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, false)) { |
| assertEquals(false, inputStream.isCloseOnClose()); |
| } |
| file.read(); |
| } |
| } |
| |
| @Test |
| public void testCtorCloseOnCloseTrue() throws IOException { |
| try (RandomAccessFile file = createRandomAccessFile()) { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, true)) { |
| assertEquals(true, inputStream.isCloseOnClose()); |
| } |
| assertThrows(IOException.class, () -> file.read()); |
| } |
| } |
| |
| @Test |
| public void testCtorNullFile() { |
| assertThrows(NullPointerException.class, () -> new RandomAccessFileInputStream(null)); |
| } |
| |
| @Test |
| public void testGetters() throws IOException { |
| try (RandomAccessFile file = createRandomAccessFile()) { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, true)) { |
| assertEquals(file, inputStream.getRandomAccessFile()); |
| assertEquals(true, inputStream.isCloseOnClose()); |
| } |
| } |
| } |
| |
| @Test |
| public void testRead() throws IOException { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(), |
| true)) { |
| // A Test Line. |
| assertEquals('A', inputStream.read()); |
| assertEquals(' ', inputStream.read()); |
| assertEquals('T', inputStream.read()); |
| assertEquals('e', inputStream.read()); |
| assertEquals('s', inputStream.read()); |
| assertEquals('t', inputStream.read()); |
| assertEquals(' ', inputStream.read()); |
| assertEquals('L', inputStream.read()); |
| assertEquals('i', inputStream.read()); |
| assertEquals('n', inputStream.read()); |
| assertEquals('e', inputStream.read()); |
| assertEquals('.', inputStream.read()); |
| assertEquals(DATA_FILE_LEN - 12, inputStream.available()); |
| assertEquals(DATA_FILE_LEN - 12, inputStream.availableLong()); |
| } |
| } |
| |
| @Test |
| public void testSkip() throws IOException { |
| |
| try (final RandomAccessFile file = createRandomAccessFile(); |
| final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(file, false)) { |
| assertEquals(0, inputStream.skip(-1)); |
| assertEquals(0, inputStream.skip(Integer.MIN_VALUE)); |
| assertEquals(0, inputStream.skip(0)); |
| // A Test Line. |
| assertEquals('A', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| assertEquals('T', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| assertEquals('s', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| assertEquals(' ', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| assertEquals('i', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| assertEquals('e', inputStream.read()); |
| assertEquals(1, inputStream.skip(1)); |
| // |
| assertEquals(DATA_FILE_LEN - 12, inputStream.available()); |
| assertEquals(DATA_FILE_LEN - 12, inputStream.availableLong()); |
| assertEquals(10, inputStream.skip(10)); |
| assertEquals(DATA_FILE_LEN - 22, inputStream.availableLong()); |
| // |
| final long avail = inputStream.availableLong(); |
| assertEquals(avail, inputStream.skip(inputStream.availableLong())); |
| // At EOF |
| assertEquals(DATA_FILE_LEN, file.length()); |
| assertEquals(DATA_FILE_LEN, file.getFilePointer()); |
| // |
| assertEquals(0, inputStream.skip(1)); |
| assertEquals(0, inputStream.skip(1000000000000L)); |
| } |
| } |
| |
| @Test |
| public void testReadByteArray() throws IOException { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(), |
| true)) { |
| // A Test Line. |
| final int dataLen = 12; |
| final byte[] buffer = new byte[dataLen]; |
| assertEquals(dataLen, inputStream.read(buffer)); |
| assertArrayEquals("A Test Line.".getBytes(StandardCharsets.ISO_8859_1), buffer); |
| // |
| assertEquals(DATA_FILE_LEN - dataLen, inputStream.available()); |
| assertEquals(DATA_FILE_LEN - dataLen, inputStream.availableLong()); |
| } |
| } |
| |
| @Test |
| public void testReadByteArrayBounds() throws IOException { |
| try (final RandomAccessFileInputStream inputStream = new RandomAccessFileInputStream(createRandomAccessFile(), |
| true)) { |
| // A Test Line. |
| final int dataLen = 12; |
| final byte[] buffer = new byte[dataLen]; |
| assertEquals(dataLen, inputStream.read(buffer, 0, dataLen)); |
| assertArrayEquals("A Test Line.".getBytes(StandardCharsets.ISO_8859_1), buffer); |
| // |
| assertEquals(DATA_FILE_LEN - dataLen, inputStream.available()); |
| assertEquals(DATA_FILE_LEN - dataLen, inputStream.availableLong()); |
| } |
| } |
| } |